Is there a history of how the Street Tire class came to be ?
Is this local class older than national classes STX/STS/STR ?
Are any class (eg A-Mod, or carts) actually prohibited from street tire ?
squid.
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http://www.sfrscca.org/solo2/Results/2002/supps.html
#47 Rules for "Street Tire " class.
This is a SFR-only class.
Vehicles run under all SCCA and SFR classification and allowance
rules, with the additional restriction that tires must have a
D.O.T. treadwear rating of 120 or greater.
Scoring will be done on the most recently published SFR Handicapping
index. Class designator is the normal class information plus the
letters "ST " (e.g. ASP-ST).
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